Home / 30,932.12-42,686.44-16,784.96

Finding the Fourth Proportional to 30,932.12, 42,686.44 and 16,784.96

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Solution

The fourth proportional to 30,932.12, 42,686.44 and 16,784.96 is: 23,163.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.12 : 42,686.44 = 16,784.96 : x
  2. Step 2: Convert to fraction form
    30,932.12/42,686.44 = 16,784.96/x
  3. Step 3: Cross multiply
    30,932.12x = 42,686.44 × 16,784.96
  4. Step 4: Simplify right side
    30,932.12x = 716,490,187.94
  5. Step 5: Solve for x
    x = 716,490,187.94/30,932.12
  6. Step 6: Final answer
    x = 23,163.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.